Service Sending, Receiving Methods and Devices

1. A service sending method, applied to a source node and comprising: sequentially mapping one or more services into a target transmission frame; encapsulating the target transmission frame into N Optical Burst Units (OBUs), which carry one or more Transmission Adapter Units (TAUs), according to a sequence of mapping, wherein the one or more TAUs carried in the N OBUs are able to be formed into the target transmission frame, and each TAU carries a data fragment of the one or more services; N is a position integer; adding an Identifier (ID) for indicating an identity of the target transmission frame into an overhead of each TAU, to enable a destination node to determine, according to the ID, the target transmission frame to which the TAU belongs; adding a length indicator for indicating the length of payload, occupied by the TAU, in an OBU into the overhead of each TAU, to enable the destination node to acquire the TAU from the OBU through decapsulation according to the length indicator; adding a position indicator for indicating a position of the TAU in the target transmission frame into the overhead of each TAU, to enable the destination node to determine, according to the position indicator and the ID, a progress of receiving the one or more services in the target transmission frame by the destination node, when the destination node parses the data fragment in the current TAU; and sending the N OBUs to the destination node one by one according to a sequence of encapsulating.

2. The method as claimed in claim 1 , wherein each OBU carries one TAU in the target transmission frame; adding one position indicator into the overhead of each TAU comprises: when N>1, adding a first position indictor into overheads of the first N−1 TAUs, and adding a second position indictor into the overhead of the Nth TAU; when N=1, adding the second position indicator into the overhead of the TAU, to enable the destination node to determine, according to the first position indicator and the ID, that there are one or more other TAUs to be parsed in the target transmission frame, and determine, according to the second position indicator and the ID, that all of the one or more TAUs in the target transmission frame have been parsed.

3. A service receiving method, applied to a destination node and comprising: sequentially receiving, from a source node, N Optical Burst Units (OBUs), which carry one or more Transmission Adapter Units (TAUs), wherein the one or more TAUs carried in the N OBUs are able to be formed into a target transmission frame into which one or more services are mapped, and each TAU carries a data fragment of the one or more services; N is a positive integer; and an overhead of each TAU comprises: an Identifier (ID) for indicating an identity of the target transmission frame, a length indicator for indicating the length of payload, occupied by the TAU, in an OBU, and a position indicator for indicating a position of the TAU in the target transmission frame; executing following operations on the N OBUs one by one according to a sequence of receiving: obtaining one or more TAUs from a current OBU sequentially through parsing according to the length indicator in the overhead of each TAU; storing, one by one according to a sequence of parsing, each data fragment carried by the one or more TAUs, wherein if it is determined, according to the position indicator and the ID in the overhead of a certain TAU, that the TAU is the last TAU in the target transmission frame, it is determined that the one or more services in the target transmission frame have been completely received.

4. The method as claimed in claim 3 , wherein storing, one by one according to the sequence of parsing, each data fragment carried by the one or more TAUs comprises: designating a cache space according to the ID in the overhead of the one or more TAUs, and storing, in the cache space, each data fragment carried by the one or more TAUs according to the sequence of parsing.

5. A service sending device, applied to a source node and comprising: a mapping component, configured to sequentially map one or more services into a target transmission frame; an encapsulating component, configured to encapsulate the target transmission frame into N Optical Burst Units (OBUs), which carry one or more Transmission Adapter Units (TAUs), according to a sequence of mapping, wherein the one or more TAUs carried in the N OBUs are able to be formed into the target transmission frame, and each TAU carries a data fragment of the one or more services; N is a positive integer; a first adding component, configured to add an Identifier (ID) for indicating an identity of the target transmission frame into an overhead of each TAU, to enable a destination node to determine, according to the ID, the target transmission frame to which the TAU belongs; a second adding component, configured to add a length indicator for indicating the length of payload, occupied by the TAU, in an OBU into the overhead of each TAU, to enable the destination node to acquire the TAU from the OBU through decapsulation according to the length indicator; a third adding component, configured to add a position indicator for indicating a position of the TAU in the target transmission frame into the overhead of each TAU, to enable the destination node to determine, according to the position indicator and the ID, a progress of receiving the one or more services in the target transmission frame by the destination node, when the destination node parses the data fragment in the current TAU; and a sending component, configured to send the N OBUs to the destination node one by one according to a sequence of encapsulating.

6. The device as claimed in claim 5 , wherein each OBU carries one TAU in the target transmission frame; the third adding component is configured to: when N>1, add a first position indictor into overheads of the first N−1 TAUs, and add a second position indictor into the overhead of the Nth TAU; when N=1, add the second position indicator into the overhead of the TAU, to enable the destination node to determine, according to the first position indicator and the ID, that there are one or more other TAUs to be parsed in the target transmission frame, and determine, according to the second position indicator and the ID, that all of the one or more TAUs in the target transmission frame have been parsed.

7. A service receiving device, applied to a destination node and comprising: a receiving component, configured to sequentially receive, from a source node, N Optical Burst Units (OBUs), which carry N Transmission Adapter Units (TAUs), wherein the N TAUs carried in the N OBUs are able to be formed into a target transmission frame into which one or more services are mapped, and each TAU carries a data fragment of the one or more services; N is a positive integer; and an overhead of each TAU comprises: an Identifier (ID) for indicating an identity of the target transmission frame, a length indicator for indicating the length of payload, occupied by the TAU, in an OBU, and a position indicator for indicating a position of the TAU in the target transmission frame; a processing component, configured to execute following operations on the N OBUs one by one according to a sequence of receiving: obtaining one or more TAUs from a current OBU sequentially through parsing according to the length indicator in the overhead of each TAU; storing, one by one according to sequence of parsing, each data fragment carried by the one or more TAUs, wherein if it is determined, according to the position indicator and the ID in the overhead of a certain TAU, that the TAU is the last TAU in the target transmission frame, it is determined that the one or more services in the target transmission frame have been completely received.

8. The device as claimed in claim 7 , wherein the processing component is configured to: designate a cache space according to the ID in the overhead of the one or more TAUs, and store, in the cache space, each data fragment carried by the one or more TAUs according to the sequence of parsing.